Hello all Piaggio Porter lovers, in this article we will show you how to disassemble the radiator thermoswitch and how to check if it works perfectly.
- First, disconnect the negative (-) battery terminal.
- Drain all the coolant.
- Unplug the connector from the thermoswitch
- Remove the radiator thermoswitch from the radiator hose.
After you have removed the thermoswitch from the radiator hose you don't know how to check if it works or not? Don't worry, we thought about this too. Here's how:
- Connect an ohmmeter between terminals A and B of the
- Put the heat sensing section
of the switch in a water bath. (As in the image opposite).
- Heat the water up to the temperature of 93°C. Check for attendance
continuity between terminals A - B of the thermal switch
of the radiator. If there is no continuity, run
the following controls.
- Bring the water temperature to 97°C. Check
the presence of continuity between terminals A and
B of the switch. If there is no continuity, replace
- Bring the water temperature to 94°C. Check
the lack of continuity between terminals A - B
of the switch. If there is continuity,
perform the following checks.
- Bring the water temperature to 85°C. Check
the lack of continuity between the A - B terminals of the circuit-breaker.
If there is continuity,
replace the switch.
After making sure that your switch works perfectly, reassemble the thermoswitch. Here's how:
- Clean the threaded portion of the switch, after which we recommend wrapping the thread with tape.
- Once this is done, mount the radiator thermoswitch on the radiator hose.
- Fill up with coolant.
- Connect the negative (-) battery terminal.
- Start the engine and check for leaks